QUIC server max streams is now at least 10 streams larger than

net/quic/quic_session.cc

Index: net/quic/quic_session.cc
diff --git a/net/quic/quic_session.cc b/net/quic/quic_session.cc
index 77eaa52057ea2af35bc364a620d56ad955cefced..42c05b612a239786888cdb06469ba2d2e045ed60 100644
--- a/net/quic/quic_session.cc
+++ b/net/quic/quic_session.cc
@@ -16,6 +16,7 @@ using base::StringPiece;
 using base::hash_map;
 using base::hash_set;
 using std::make_pair;
+using std::max;
 using std::vector;
 
 namespace net {
@@ -471,12 +472,19 @@ void QuicSession::OnConfigNegotiated() {
   connection_->SetFromConfig(config_);
   QuicVersion version = connection()->version();
 
-  // A server should accept a small number of additional streams beyond the
-  // limit sent to the client. This helps avoid early connection termination
-  // when FIN/RSTs for old streams are lost or arrive out of order.
   if (FLAGS_quic_allow_more_open_streams) {
-    set_max_open_streams((is_server() ? kMaxStreamsMultiplier : 1.0) *
-                         config_.MaxStreamsPerConnection());
+    uint32 max_streams = config_.MaxStreamsPerConnection();
+    if (is_server()) {
+      // A server should accept a small number of additional streams beyond the
+      // limit sent to the client. This helps avoid early connection termination
+      // when FIN/RSTs for old streams are lost or arrive out of order.
+      // Use a minimum number of additional streams, or a percentage increase,
+      // whichever is larger.
+      max_streams =
+          max(max_streams + kMaxStreamsMinimumIncrement,
+              static_cast<uint32>(max_streams * kMaxStreamsMultiplier));
+    }
+    set_max_open_streams(max_streams);
   }
 
   if (version <= QUIC_VERSION_16) {